ORDER ARTIODACTYLA: EVEN-TOED UNGULATES 665 



the Equatorial forest (eastern as well as western) , Oshwe near Lake 

 Leopold II, Katanga, and northeastern Rhodesia. "The Congo-basin 

 south of the great curvature of the mighty Congo river, west of Lua- 

 laba and north of Kasai rivers, is inhabited by the largest among 

 the Duikers, C. sylvicultrix." (Lonnberg, 1919, pp. 163, 185.) 



The species is still found, though in much reduced numbers, in all 

 the forests and gallery forests of the Belgian Congo. Less rare than 

 the Bongo, it becomes each year the victim of the hecatombs at the 

 time of drives with nets. (A. J. Jobaert, in litt., November 10, 1936.) 



The hunting of this species is not allowed in the Belgian Congo 

 (Forest and Game Service, 'in litt., November, 1936). 



In Angola it occurs "in wooded kloofs high on western plateau" 

 (Varian, in Maydon, 1932, p. 379) . 



It is "scarce in Northern Rhodesia although occasionally found 

 in the country bordering the Congo Free State." It can be gotten 

 round Kasempa (on Governor's license only). (Lyell, in Maydon, 

 1932, pp. 328, 332.) 



In Northern Rhodesia, "owing to its strictly nocturnal habits it is 

 possibly a good deal more plentiful than one would credit, in fact 

 I have been told that in parts of north-western Mankoya in Barotse, 

 there were localities in which it used to be more plentiful than the 

 common duiker. It still occurs not uncommonly in parts of the 

 Mwinilunga, Solwezi and Ndola Districts, particularly near the 

 Congo border, and also very sparingly in the Kawambwa, Fort 

 Rosebery, Kasempa and Balovale (Barotse) Districts, and on the 

 Mankoya-Mumbwa border. 



"Special measures for protection are recommended elsewhere. 



"Where it occurs the natives trap a fair number on their lands." 

 (Pitman, 1934, p. 18.) 



The number of Yellow-backed Duikers in Northern Rhodesia (ex- 

 cluding Barotse) is estimated at about 1,500 (Pitman, 1934, p. 331). 



Among the localities from which Lydekker and Blaine (1914, 

 vol. 2, pp. 65-66) record specimens are the following: Sierra Leone; 

 Fanti, Prang, and Bibianaha, Gold Coast; Oban and Lagos, southern 

 Nigeria; Mbaya, southeast Congo; and Kambovi, N. W. Rhodesia. 



Itiiri Yellow-backed Duiker 



CEPHALOPHUS SYLVICULTRIX ITURIENSIS M. Rothschild and Neuville # 



Cephalophus ituriensis M. Rothschild and Neuville, C. R. Acad. Sci. [Paris], 

 vol. 144, p. 98, 1907. ("La vallee de FIturi," northeastern Belgian Congo.) 



Little is known of this subspecies. It is the only one, in addition 

 to C. s. sylvicultrix, recognized by Miss St. Leger in her recent mono- 

 graph (1936, p. 215), where its range is given as "Ituri Valley to 

 British Ruanda." 



